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      1 /*
      2  * This file contains symbols and structures defining the rpc protocol
      3  * between the NIS clients and the NIS servers.  The servers
      4  * are the NIS database servers, and the NIS binders.
      5  */
      6 
      7 #ifndef _RPCSVC_YP_PROT_H
      8 #define _RPCSVC_YP_PROT_H
      9 
     10 #include <features.h>
     11 
     12 #include <rpc/rpc.h>
     13 #include <rpcsvc/ypclnt.h>
     14 
     15 __BEGIN_DECLS
     16 
     17 /*
     18  * The following procedures are supported by the protocol:
     19  *
     20  * YPPROC_NULL() returns () takes nothing, returns nothing.  This indicates
     21  * that the NIS server is alive.
     22  *
     23  * YPPROC_DOMAIN (char *) returns (bool_t) TRUE.  Indicates that the
     24  * responding NIS server does serve the named domain; FALSE indicates no
     25  * support.
     26  *
     27  * YPPROC_DOMAIN_NONACK (char *) returns (TRUE) if the NIS server does serve
     28  * the named domain, otherwise does not return.  Used in the broadcast case.
     29  *
     30  * YPPROC_MATCH (struct ypreq_key) returns (struct ypresp_val).  Returns the
     31  * right-hand value for a passed left-hand key, within a named map and
     32  * domain.
     33  *
     34  * YPPROC_FIRST (struct ypreq_nokey) returns (struct ypresp_key_val).
     35  * Returns the first key-value pair from a named domain and map.
     36  *
     37  * YPPROC_NEXT (struct ypreq_key) returns (struct ypresp_key_val).  Returns
     38  * the key-value pair following a passed key-value pair within a named
     39  * domain and map.
     40  *
     41  * YPPROC_XFR (struct ypreq_xfr) returns nothing.  Indicates to a server that
     42  * a map should be updated.
     43  *
     44  * YPPROC_CLEAR	takes nothing, returns nothing.  Instructs a NIS server to
     45  * close the current map, so that old versions of the disk file don't get
     46  * held open.
     47  *
     48  * YPPROC_ALL (struct ypreq_nokey), returns
     49  * 	union switch (bool_t more) {
     50  *		TRUE:	(struct ypresp_key_val);
     51  *		FALSE:	(struct) {};
     52  *	}
     53  *
     54  * YPPROC_MASTER (struct ypreq_nokey), returns (ypresp_master)
     55  *
     56  * YPPROC_ORDER (struct ypreq_nokey), returns (ypresp_order)
     57  *
     58  * YPPROC_MAPLIST (char *), returns (struct ypmaplist *)
     59  */
     60 
     61 /* Program and version symbols, magic numbers */
     62 
     63 #define YPPROG		100004
     64 #define YPVERS		2
     65 #define YPVERS_ORIG	1
     66 #define YPMAXRECORD	1024
     67 #define YPMAXDOMAIN	64 /* XXX orig. yp_prot.h defines 256 */
     68 #define YPMAXMAP	64
     69 #define YPMAXPEER	64 /* XXX orig. yp_prot.h defines 256 */
     70 
     71 /* byte size of a large NIS packet */
     72 #define YPMSGSZ		1600
     73 
     74 typedef struct {
     75   u_int keydat_len;
     76   char *keydat_val;
     77 } keydat_t;
     78 
     79 typedef struct {
     80   u_int valdat_len;
     81   char *valdat_val;
     82 } valdat_t;
     83 
     84 struct ypmap_parms {
     85   char *domain;			/* Null string means not available */
     86   char *map;			/* Null string means not available */
     87   unsigned int ordernum;	/* 0 means not available */
     88   char *owner;			/* Null string means not available */
     89 };
     90 
     91 /*
     92  * Request parameter structures
     93  */
     94 
     95 struct ypreq_key {
     96   const char *domain;
     97   const char *map;
     98   keydat_t keydat;
     99 };
    100 
    101 struct ypreq_nokey {
    102   char *domain;
    103   char *map;
    104 };
    105 
    106 struct ypreq_xfr {
    107   struct ypmap_parms map_parms;
    108   u_int transid;
    109   u_int proto;
    110   u_int port;
    111 };
    112 
    113 #define ypxfr_domain map_parms.domain
    114 #define ypxfr_map map_parms.map
    115 #define ypxfr_ordernum map_parms.ordernum
    116 #define ypxfr_owner map_parms.owner
    117 
    118 /* Return status values */
    119 
    120 enum ypstat {
    121   YP_TRUE = 1,		/* General purpose success code */
    122 #define YP_TRUE YP_TRUE
    123   YP_NOMORE = 2,	/* No more entries in map */
    124 #define YP_NOMORE YP_NOMORE
    125   YP_FALSE = 0,		/* General purpose failure code */
    126 #define YP_FALSE YP_FALSE
    127   YP_NOMAP = -1,	/* No such map in domain */
    128 #define YP_NOMAP YP_NOMAP
    129   YP_NODOM = -2,	/* Domain not supported */
    130 #define YP_NODOM YP_NODOM
    131   YP_NOKEY = -3,	/* No such key in map */
    132 #define YP_NOKEY YP_NOKEY
    133   YP_BADOP = -4,	/* Invalid operation */
    134 #define YP_BADOP YP_BADOP
    135   YP_BADDB = -5,	/* Server data base is bad */
    136 #define YP_BADDB YP_BADDB
    137   YP_YPERR = -6,	/* NIS server error */
    138 #define YP_YPERR YP_YPERR
    139   YP_BADARGS = -7,	/* Request arguments bad */
    140 #define YP_BADARGS YP_BADARGS
    141   YP_VERS = -8,		/* NIS server version mismatch - server can't supply
    142 			   requested service. */
    143 #define YP_VERS YP_VERS
    144 };
    145 
    146 /*
    147  * Response parameter structures
    148  */
    149 
    150 typedef enum ypstat ypstat;
    151 
    152 struct ypresp_val {
    153   ypstat status;
    154   valdat_t valdat;
    155 };
    156 
    157 struct ypresp_key_val {
    158   ypstat status;
    159 #ifdef STUPID_SUN_BUG
    160   /* This is the form as distributed by Sun.  But even the Sun NIS
    161      servers expect the values in the other order.  So their
    162      implementation somehow must change the order internally.  We
    163      don't want to follow this bad example since the user should be
    164      able to use rpcgen on this file.  */
    165   keydat_t keydat;
    166   valdat_t valdat;
    167 #else
    168   valdat_t valdat;
    169   keydat_t keydat;
    170 #endif
    171 };
    172 
    173 struct ypresp_master {
    174   ypstat status;
    175   char *master;
    176 };
    177 
    178 struct ypresp_order {
    179   ypstat status;
    180   u_int ordernum;
    181 };
    182 
    183 struct ypmaplist {
    184   char *map;
    185 #define ypml_name map
    186   struct ypmaplist *next;
    187 #define ypml_next next
    188 };
    189 
    190 struct ypresp_maplist {
    191   ypstat status;
    192   struct ypmaplist *list;
    193 };
    194 
    195 /*
    196  * Procedure symbols.  YPPROC_NULL, YPPROC_DOMAIN, and YPPROC_DOMAIN_NONACK
    197  * must keep the same values (0, 1, and 2) that they had in the first version
    198  * of the protocol.
    199  */
    200 
    201 #define YPPROC_NULL	0
    202 #define YPPROC_DOMAIN	1
    203 #define YPPROC_DOMAIN_NONACK 2
    204 #define YPPROC_MATCH	3
    205 #define YPPROC_FIRST	4
    206 #define YPPROC_NEXT	5
    207 #define YPPROC_XFR	6
    208 #define YPPROC_CLEAR	7
    209 #define YPPROC_ALL	8
    210 #define YPPROC_MASTER	9
    211 #define YPPROC_ORDER	10
    212 #define YPPROC_MAPLIST	11
    213 #define	YPPROC_NEWXFR	12
    214 
    215 /*
    216  *		Protocol between clients and NIS binder servers
    217  */
    218 
    219 /*
    220  * The following procedures are supported by the protocol:
    221  *
    222  * YPBINDPROC_NULL() returns ()
    223  * 	takes nothing, returns nothing
    224  *
    225  * YPBINDPROC_DOMAIN takes (char *) returns (struct ypbind_resp)
    226  *
    227  * YPBINDPROC_SETDOM takes (struct ypbind_setdom) returns nothing
    228  */
    229 
    230 /* Program and version symbols, magic numbers */
    231 
    232 #define YPBINDPROG		100007
    233 #define YPBINDVERS		2
    234 #define YPBINDVERS_ORIG		1
    235 
    236 /* Procedure symbols */
    237 
    238 #define YPBINDPROC_NULL		0
    239 #define YPBINDPROC_DOMAIN	1
    240 #define YPBINDPROC_SETDOM	2
    241 /*
    242  * Response structure and overall result status codes.  Success and failure
    243  * represent two separate response message types.
    244  */
    245 
    246 enum ypbind_resptype {YPBIND_SUCC_VAL = 1, YPBIND_FAIL_VAL = 2};
    247 
    248 struct ypbind_binding {
    249   struct in_addr ypbind_binding_addr;	        /* In network order */
    250   unsigned short int ypbind_binding_port;	/* In network order */
    251 };
    252 
    253 struct ypbind_resp {
    254   enum ypbind_resptype ypbind_status;
    255   union {
    256     u_int ypbind_error;
    257     struct ypbind_binding ypbind_bindinfo;
    258   } ypbind_respbody;
    259 };
    260 
    261 
    262 /* Detailed failure reason codes for response field ypbind_error*/
    263 
    264 #define YPBIND_ERR_ERR 1		/* Internal error */
    265 #define YPBIND_ERR_NOSERV 2		/* No bound server for passed domain */
    266 #define YPBIND_ERR_RESC 3		/* System resource allocation failure */
    267 
    268 /*
    269  * Request data structure for ypbind "Set domain" procedure.
    270  */
    271 struct ypbind_setdom {
    272   char *ypsetdom_domain;
    273   struct ypbind_binding ypsetdom_binding;
    274   u_int ypsetdom_vers;
    275 };
    276 #define ypsetdom_addr ypsetdom_binding.ypbind_binding_addr
    277 #define ypsetdom_port ypsetdom_binding.ypbind_binding_port
    278 
    279 /*
    280  *		Protocol between clients (ypxfr, only) and yppush
    281  *		yppush speaks a protocol in the transient range, which
    282  *		is supplied to ypxfr as a command-line parameter when it
    283  *		is activated by ypserv.
    284  */
    285 #define YPPUSHVERS		1
    286 #define YPPUSHVERS_ORIG		1
    287 
    288 /* Procedure symbols */
    289 
    290 #define YPPUSHPROC_NULL		0
    291 #define YPPUSHPROC_XFRRESP	1
    292 
    293 /* Status values for yppushresp_xfr.status */
    294 
    295 enum yppush_status {
    296   YPPUSH_SUCC = 1,		/* Success */
    297 #define YPPUSH_SUCC	YPPUSH_SUCC
    298   YPPUSH_AGE = 2,		/* Master's version not newer */
    299 #define YPPUSH_AGE	YPPUSH_AGE
    300   YPPUSH_NOMAP = -1,		/* Can't find server for map */
    301 #define YPPUSH_NOMAP 	YPPUSH_NOMAP
    302   YPPUSH_NODOM = -2,		/* Domain not supported */
    303 #define YPPUSH_NODOM 	YPPUSH_NODOM
    304   YPPUSH_RSRC = -3,		/* Local resouce alloc failure */
    305 #define YPPUSH_RSRC 	YPPUSH_RSRC
    306   YPPUSH_RPC = -4,		/* RPC failure talking to server */
    307 #define YPPUSH_RPC 	YPPUSH_RPC
    308   YPPUSH_MADDR = -5,		/* Can't get master address */
    309 #define YPPUSH_MADDR	YPPUSH_MADDR
    310   YPPUSH_YPERR = -6,		/* NIS server/map db error */
    311 #define YPPUSH_YPERR 	YPPUSH_YPERR
    312   YPPUSH_BADARGS = -7,		/* Request arguments bad */
    313 #define YPPUSH_BADARGS 	YPPUSH_BADARGS
    314   YPPUSH_DBM = -8,		/* Local dbm operation failed */
    315 #define YPPUSH_DBM	YPPUSH_DBM
    316   YPPUSH_FILE = -9,		/* Local file I/O operation failed */
    317 #define YPPUSH_FILE	YPPUSH_FILE
    318   YPPUSH_SKEW = -10,		/* Map version skew during transfer */
    319 #define YPPUSH_SKEW	YPPUSH_SKEW
    320   YPPUSH_CLEAR = -11,		/* Can't send "Clear" req to local ypserv */
    321 #define YPPUSH_CLEAR	YPPUSH_CLEAR
    322   YPPUSH_FORCE = -12,		/* No local order number in map - use -f flag*/
    323 #define YPPUSH_FORCE	YPPUSH_FORCE
    324   YPPUSH_XFRERR = -13,		/* ypxfr error */
    325 #define YPPUSH_XFRERR	YPPUSH_XFRERR
    326   YPPUSH_REFUSED = -14,		/* Transfer request refused by ypserv */
    327 #define YPPUSH_REFUSED	YPPUSH_REFUSED
    328   YPPUSH_NOALIAS = -15		/* Alias not found for map or domain */
    329 #define	YPPUSH_NOALIAS	YPPUSH_NOALIAS
    330 };
    331 typedef enum yppush_status yppush_status;
    332 
    333 struct yppushresp_xfr {
    334   u_int transid;
    335   yppush_status status;
    336 };
    337 
    338 struct ypresp_all {
    339   bool_t more;
    340   union {
    341     struct ypresp_key_val val;
    342   } ypresp_all_u;
    343 };
    344 
    345 extern bool_t xdr_ypreq_key (XDR *__xdrs, struct ypreq_key * __objp);
    346 extern bool_t xdr_ypreq_nokey (XDR *__xdrs, struct ypreq_nokey * __objp);
    347 extern bool_t xdr_ypreq_xfr (XDR *__xdrs, struct ypreq_xfr * __objp);
    348 extern bool_t xdr_ypresp_val (XDR *__xdrs, struct ypresp_val * __objp);
    349 extern bool_t xdr_ypresp_key_val (XDR *__xdrs, struct ypresp_key_val * __objp);
    350 extern bool_t xdr_ypbind_resp (XDR *__xdrs, struct ypbind_resp * __objp);
    351 extern bool_t xdr_ypbind_setdom (XDR *__xdrs, struct ypbind_setdom * __objp);
    352 extern bool_t xdr_ypmap_parms (XDR *__xdrs, struct ypmap_parms * __objp);
    353 extern bool_t xdr_yppushresp_xfr (XDR *__xdrs, struct yppushresp_xfr * __objp);
    354 extern bool_t xdr_ypresp_order (XDR *__xdrs, struct ypresp_order  * __objp);
    355 extern bool_t xdr_ypresp_master (XDR *__xdrs, struct ypresp_master * __objp);
    356 extern bool_t xdr_ypall (XDR *__xdrs, struct ypall_callback * __objp);
    357 extern bool_t xdr_ypresp_maplist (XDR *__xdrs, struct ypresp_maplist * __objp);
    358 extern bool_t xdr_ypbind_binding (XDR *__xdrs, struct ypbind_binding * __objp);
    359 extern bool_t xdr_ypbind_resptype (XDR *__xdrs, enum ypbind_resptype * __objp);
    360 extern bool_t xdr_ypstat (XDR *__xdrs, enum ypbind_resptype * __objp);
    361 extern bool_t xdr_ypresp_all (XDR *__xdrs, struct ypresp_all  * __objp);
    362 extern bool_t xdr_domainname (XDR *__xdrs, char ** __objp);
    363 
    364 __END_DECLS
    365 
    366 #endif	/* _RPCSVC_YP_PROT_H */
    367